08 Feb '12, 9pm

Sh*t happens: Mysterious ‘manure foam’ causes pig farms to explode via @grist

Sh*t happens: Mysterious ‘manure foam’ causes pig farms to explode via @grist

A screen shot from an ABC news report about the probem (click to watch the video). It is said that nature abhors a vacuum. Well, according to this report from the Minnesota Daily , nature also abhors factory farms. Large midwestern hog farms have for the last few years been battling a mysterious foam that is forming on top of their barns. In the worst case scenarios, the foam blocks ventilation ducts and the barns explode — yes, explode — killing the thousands of hogs inside. The article reads: The foam traps gases like methane and when a spark ignites it causes an explosion. About a half dozen barns in the Midwest have exploded since the foam was discovered in 2009. In mid-September 2011, a barn in Iowa was added to the growing number of barns taken down by the foam. In the explosion, 1,500 pigs were lost, and one worker was injured. The cause of the foam is still unknown...

Full article: http://grist.org/factory-farms/sht-happens-mysterious-man...

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